Carriage-jack



(N0 Model.)

- W.A. POSTER.

GARRIAGB JACK.

N0. 256.309. PatentedApr.lLl882.

NITED STATES PATENT OFFICE.

' WILLIAM A. FOSTER, OF OHESTER, ASSIGNOR OF ONE-HALF T S. H. JENNINGS, OF DEEP RIVER, CONNEOTICUT.

CARRlAGE-JACK.

SPECIFICA'IION forming part of Let ters Patent N0. 256,309, ama April 11', 1882.

' Applicatiou filed March 13,1882. (N0 mcdel.) v

. specification, and represent, in'

I igure 1, a perspeetive view 0f tl1e two parts detached; Fig. 2, a vertical sectional view illustrating the operation.

This invention relates to an improvemenb in devices l'on raising carriage-axles for the removal of the wheels-as for lubricating, &c.--

- commouly called carriage-jacks, the object beinga simpleand compacbdevicefwhich may be readily adjusted to differenl: ele vations and be autoumticallylocked in the supporting position; and ii3 consis.ts in the constructlon 0f the jack, as hereinafter deseribed, and more particula rly re cited in the claim.

A rpresents the body or post, the lower cn4l Of' which is t0 rest upon the floor 01" ground, as the case may be, and from its upper end dowuward is a vertical slot,B transversely across Whicln nre several bars, a, more or less' in number,equidistaixt,or nearly so, from euch other.

O is the l ever fitted ab one 011d, b, to take hold beneath the axle of 1110 carriage, the olher, d, in convenient shap f0r the application of the band in using thejack. Tl1e upper edge of the lever is const'ructedwith a notch, e, so as t0 freely pass on t0 either of the bars a. On its opposite side is a segmeut-shaped surface, f, 0t' whicl1 the lower part of-the notch e is the center. This segment terminates back from the end b, as a1; h, wh ere in forms sub stantially a shoulder, and so that, this shoulder h resting upon a bar below, as seen in Fig. 2, the notch e may be passecl onto t-l1e bar l above, zus seen in broken lines, same figure, und when brought into tl1at position the notch engages the bar as a, fulcrum, and so that, then turning the lever backward, the segmentabove resisting the tendecy of the lev6r to turn upon the bar below as'a fulcrum.

The en l of the lever is irltroduced beneath the axlein the usual manner, nd while thele- "er, say, is in tl1e upward position, (iudicated in broken lines,) then the turning down of the lever causes the lifting end of the lever to-rise, as indicated in broken lines, und take with it; the axle until it arrives ab tlxe lockinghoulder i. Fromm this positin itis released by raisin g alle handle end of the lever, whioh carries tl1e notcl1 up 0nto the upper bar until the shoulder below will escape from 1:he bar Wllh which it was engaged. (Ehen tl1e lifting end 0f tlxe lev'er will l'all and permit tl1e axle to drop.

- Tl1e levex- 1nay be constructed with sevoml locking-shoulders, tl1c; drawings showing two the lever O, 0ne eml fitted for a handle, the other as Llxe lifting eml, construqted With a uotch, c, upon one side, the segment-shaped surl'ace f and locking-shoulderi upon the opposite side, substantially as deseribed.

WILLIAM A. FOSTER.

Witnesses:

GILBERJ. SULLIVAN, E. O. HUNGER-FORD. 

